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#1
07-12-2001, 10:32 AM
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First I would like to say that I have done a search on this subject with few results.(ineffective key words?)
How do I go about flushing the cooling sys in my 1991 420SEL? Thanks in advance for your reply. 
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#2
07-12-2001, 05:09 PM
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Fred:
I searched the archives too. Don't own a 420 but have been considering one, hence the curiosity. In one post, Benzmac indicated the block as well as the radiator could be drained. When I change my coolant, I remove the T-stat so I can forward/reverse flush. The 103 motors have a 19mm plug on the passenger side that's easy to get at. Your V-8s engine plug may be a bit harder to get at? If you don't receive anything here, you may need to refer to the 126 CD-Rom.
__________________
Mike Murrell 1991 300-SEL - Model 126 M103 - SOHC "Fräulein"
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